Quenching and tempering heat treatment are integrated in order to improve the mechanical properties of fasteners to meet the product requirements of tensile strength and yield ratio value.
热处理调质是为了提高紧固件的综合力学性能，满足产品规定的抗拉强度值和屈强比。
Quenching and tempering heat treatment are integrated in order to improve the mechanical properties of fasteners to meet the product requirements of tensile strength and yield ratio value.
热处理调质是为了提高紧固件的综合力学性能，满足产品规定的抗拉强度值和屈强比。
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